The effects of fatigue on the ground reaction force (GRF) and the vibrations of the human lower extremity soft tissues are studied in this paper. A recently developed multiple degreesof-freedom mass-spring-damper model of the human body during running is used for this purpose. The model is able to take the muscle activity into account by using a nonlinear controller that tunes the mechanical pr...

Shei R-J, Mickleborough TD. Relative Contributions of Central and Peripheral Factors in Human Muscle Fatigue during Exercise: A Brief Review. JEPonline 2013;16(6):1-17. Exercise performance is limited by fatigue, which is characterized as central or peripheral depending on whether it develops proximal or distal to the neuromuscular junction. Both models account for detriments in the ability of ...

The effects of fatigue on cognitive processing are not fully understood. Computational modeling research has led to two distinct accounts of fatigue, and specifically its effects on psychomotor vigilance performance, which are both supported by empirical findings. The first account is based on ACT-R and posits that fatigue increases the probability of microlapses. A biomathmatical model of fati...

Fatigue damage of solder joints is a serious reliability concern in electronic packaging. In this study, a flip chip package was modeled to investigate the effects of underfill material properties and BT substrate thickness on solder joint reliability. The CTE was found to have the main effect and matching CTE between underfill and solder joint is the most important consideration in the selecti...

BACKGROUND The Job Demand Control Support model (JDCS) is one of the most widely used theoretical models relating job characteristics to health and wellbeing. OBJECTIVE This study aimed to assess the predictive power of the JDCS model for determining job satisfaction and fatigue in uniformed Swedish police. An additional aim was to determine if predictive power of the model would be improved ...